new TAM7036 air handler, 3ton xl16i h/p, 15kw heater, and honeywell iaq thermostat. old air handler made lots of noise because of turbulence and high static pressures. also not alot of airflow thru vents.
i added 2 turning vanes on the right and left side of the supply plenum. also added to manual dampers to supply. i installed new return box with a 16x20 to 10x20 square elbow with 5 turning vanes in it. also added a 10" flex return.
tested unit in heat and cool. and set airflow to heat/450cfm/ton cool/390/ton
TESP in heating was .19"w.c. return and .12" supply=.31"w.c. 1351cfm
this unit turned out real nice and the customers are happy. i am waiting to get the before pictures and outdoor unit pics.
the first picture is the original manual damper for the ductwork. i couldnt believe my eyes. lol